CODEWITHSUNDEEP
javaswing
Chamal
Chamal

Reputation: 1127

how to clear JTable

How can i clear the content of the JTable using Java..

Upvotes: 69

Views: 182582

Answers (7)

Shinwar ismail
Shinwar ismail

Reputation: 307

((DefaultTableModel)jTable3.getModel()).setNumRows(0); // delet all table row

Try This:

Upvotes: 1

Dan Cheshire
Dan Cheshire

Reputation: 43

This is the fastest and easiest way that I have found;

while (tableModel.getRowCount()>0)
          {
             tableModel.removeRow(0);
          }

This clears the table lickety split and leaves it ready for new data.

Upvotes: 4

user85421
user85421

Reputation: 29680

You must remove the data from the TableModel used for the table.

If using the DefaultTableModel, just set the row count to zero. This will delete the rows and fire the TableModelEvent to update the GUI. 

JTable table;
…
DefaultTableModel model = (DefaultTableModel) table.getModel();
model.setRowCount(0);

If you are using other TableModel, please check the documentation.

Upvotes: 98

Madhuka Dilhan
Madhuka Dilhan

Reputation: 1416

If we use tMOdel.setRowCount(0); we can get Empty table.

DefaultTableModel tMOdel = (DefaultTableModel) jtableName.getModel();
tMOdel.setRowCount(0);

Upvotes: 1

Malith
Malith

Reputation: 401

I think you meant that you want to clear all the cells in the jTable and make it just like a new blank jTable. For an example, if your table is myTable, you can do following. 

DefaultTableModel model = new DefaultTableModel();
myTable.setModel(model);

Upvotes: 1

Black_Zerg
Black_Zerg

Reputation: 87

I had to get clean table without columns. I have done folowing:

jMyTable.setModel(new DefaultTableModel());

Upvotes: 7

Robe Elckers
Robe Elckers

Reputation: 977

Basically, it depends on the TableModel that you are using for your JTable. If you are using the DefaultTableModel then you can do it in two ways:

DefaultTableModel dm = (DefaultTableModel)table.getModel();
dm.getDataVector().removeAllElements();
dm.fireTableDataChanged(); // notifies the JTable that the model has changed

or

DefaultTableModel dm = (DefaultTableModel)table.getModel();
while(dm.getRowCount() > 0)
{
    dm.removeRow(0);
}

See the JavaDoc of DefaultTableModel for more details

Upvotes: 23

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